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Title:
RADAR IMAGE PROCESSING DEVICE AND RADAR IMAGE PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/189765
Kind Code:
A1
Abstract:
This radar image processing device (10) is configured to be provided with: a phase difference calculation unit (71) which calculates, for respective pixels located at corresponding positions between a group of pixels encompassed in a first suppression application range within which reflected signals are to be suppressed in a first radar image captured of an observation region from a first radio wave receiving location and a group of pixels encompassed in a second suppression application range within which reflected signals are to be suppressed in a second radar image captured of the observation region from a second radio wave receiving location, the phase difference between a phase with respect to the first radio wave receiving location and a phase with respect to the second radio wave receiving location in each of a plurality of reflected signals that coexist within a single pixel; and a rotation quantity calculation unit (31) which calculates, from the respective phase differences, phase rotation quantities for the group of pixels encompassed in the second suppression application range, wherein a difference calculation unit (32) rotates, on the basis of the respective rotation quantities, the phases of the group of pixels encompassed in the second suppression application range, and then calculates a difference between the pixel values of corresponding pixels located in a corresponding manner from among the group of pixels encompassed in the first suppression application range and a group of phase-rotated pixels encompassed in the second suppression application range.

Inventors:
KATAYAMA YUMIKO (JP)
SUWA KEI (JP)
Application Number:
PCT/JP2019/014008
Publication Date:
October 03, 2019
Filing Date:
March 29, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S13/90
Domestic Patent References:
WO2016125206A12016-08-11
WO2015151134A12015-10-08
WO2017154205A12017-09-14
Foreign References:
JP2007322383A2007-12-13
JP2010175330A2010-08-12
JP2010281584A2010-12-16
Other References:
XIANG, Z. ET AL.: "A new DEM reconstruction method based on an accurate flattening algorithm in interferometric SAR", 2008 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 2008, pages 1093 - 1096, XP031250746
BICKEL, D. L. ET AL.: "A Null-Steering Viewpoint of Interferometric SAR, IGARSS 2000", IEEE 2000 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM. TAKING THE PULSE OF THE PLANET: THE ROLE OF REMOTE SENSING IN MANAGING THE ENVIRONMENT PROCEEDINGS (CAT. NO. 00 CH 37120, July 2000 (2000-07-01), pages 3206 - 3209, XP010506326, ISBN: 0-7803-6359-0
See also references of EP 3757610A4
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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